Operating Systems General Concepts Interview Questions
Questions Answers Views Company eMail

What is Difference between thread and process?

Samsung, HCL, Goldman Sachs, Encora, Microsoft, HP, AirTies, Azingo, Bloomberg, MES,

28 246518

How to communicate between difference process?

HP, IBM,

2 6848

What is the best way of communication in multi process environment? ex: getting log from different applications from multi servers?

HP,

1 2628




What is scheduling and How it effects the processor efficiency?

HP,

2 2771

What is virtual memory, if OS didt have that concept What are the problems can arise?

HP,

6 12391

What is the best suited algorithm to avoid internal fragmentation?

HP,

2 6677

How to escape from external fragmentation?

HP,

2 3139

What is difference in managing processes in windows, unix, RTOS?

HP,

1788




What is the difference between mutex and semaphore?

Microsoft, HP,

14 50968

What are counting semaphores?

IBM, HP,

4 10810

which is best among semaphores and mutexes?

HP,

2 5099

which is best among pipes, queues, shared memory and why?

HP,

2 4367

What are named pipes?

HP,

3 3884

What is the signal?

HP,

1 2919

What is the highest priority software interrupt?

HP,

1 3469


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Un-Answered Questions { Operating Systems General Concepts }

How do I know if my os is corrupted?

19


How are server systems classified?

92


What is purpose of different operating systems?

69


Tell me about different OS related issues for a given set of C-programs (mainly address issues address space, paging etc.)

81


what is the relationship between page size and page table?

1436






What are old chkdsk files?

21


What is the cause of thrashing? How does the system detect thrashing?

56


How do I update in terminal?

35


What is throughput?

71


Can chkdsk damage a hard drive?

24


What factors determine whether a detection-algorithm must be utilized in a deadlock avoidance system?

97


State the differences between ddr1, 2 and 3.

51


How do I find my hidden files?

35


What is tcl timing?

56


What is long term scheduler in operating system (os)?

54